The authors named the genus Sinasaurus Zhou (2000) homonymum junius of Sinosaurus Young (1940), now named nomen substitutum Neosinasaurus Zhou (nom. nov.). The systematic study of Neosinasaurus and Xinpusaurus is presented as follows:\;Class Reptilia Linnaeus, 1758\;\ Subclass Diapsida Osborn, 1903\;\ \ Order Sauropterygia Owen, 1860\;\ \ \ Suborder Pachypleurosauroidea Huene, 1956\;\ \ \ \ Family Neosinasauridae Zhou, nom. nov. 2000 Sinasauridae Zhou, in Yin, Zhou et al., pp.5～6.\; Type genus Neosinasaurus Zhou, nom. nov.\;Genus Neosinasaurus Zhou, nom. nov. 2000 Sinasaurus Zhou, in Yin, Zhou et al., pp.6.\; Type species Neosinasaurus hoangi (Zhou)\;\ Neosinasaurus hoangi (Zhou) 2000 Sinasaurus hoangi Zhou, in Yin, Zhou et al., pp.6～8, pl. I, figs. 1～5; pl. Ⅱ, figs. 1, 3.\;Suborder Thalattosauria\;\ Family Thalattosauridae Merriam, 1905\;\ \ Genus Xinpusaurus Yin, 2000 2000 Xinpusaurus Yin, in Yin, Zhou et al. pp.12～13.\; Type species Xinpusaurus suni Yin, 2000\;\ \ Xinpusaurus suni Yin, 2000 2000 Xinpusaurus suni Yin, in Yin, Zhou et al. pp.13～15; pl. Ⅶ, figs. 1～3; pl. Ⅷ, figs. 1～5.
描述了关岭新铺地区晚三叠世法郎组瓦窑段中发现的鱼类5目5科5属5种和1未定种,其中1新属5新种,它们是Guizhoucoelacanthus guanlingensis Liu,Yin et Wang S Y gen.etsp.nov.,Birgeria guizhouensisLiu,Yin et Luo sp.nov.,Birgeriasp.,Pholidopleurus xiao waensis Liuet Yin sp.nov.,Peltopleurus brachycephalus Liu et Yin sp.nov.,Guizhoueugnathus largusLiu,Yinet Luo sp.nov.。关岭法郎组瓦窑段鱼类组合与邻区兴义晚三叠世法郎组竹杆坡段(卡尼早期)鱼类组合明显不同,瓦窑段的层位在竹杆坡段之上,其时代可能为卡尼中期。
